Fine Grinding Intensification Mechanism for Metal Powder Materials

The fine grinding of metal powders is shown to proceed simultaneously with particle aggregation. Here, destruction and aggregation are in dynamic equilibrium. To destroy metal particles during repeated deforming actions, it is necessary to prevent the relaxation of microcracks on the surface of these particles in the intervals between mechanical actions. Therefore, the fine grinding of metal particles without the substances that prevent microcrack relaxation is practically impossible. It is shown that the following two reagents, the mechanisms of influencing the process of which are different, should be used to intensify the fine grinding of metals: a metal defect formation aid at the initial stages of action on the particles to be ground and a dispersant in order to disaggregate the products of disintegration of these particles.